Cross-head.



M. JOYNER. CROSS HEAD. APPLICATION FILED JUNE 17, 1911.

- 1,037,633. Patented Sept. 3, 1912.

I 2 SHEETS-SHEET 1. 3 6 29- 4 M. D. JOYNER. GROSS HEAD. APPLICATIONFILED JUNE l7, l91 1. I

1,037,633, Patented Sept. 3, 1912.

J8 27 1 31 1 I?! 2'5 22 I I 22 24 j 24 2'4 UNITED STATES PATENT OFFICE.

I MILES D. JOYNER, OF SAVANNAH, GEORGIA.

/ cnoss-rfEAn.

improve the construction of cross heads,

and to provide a simple, eflicient and comparatively inexpensive crosshead, equipped with longitudinally adjustable gibs, designed for use onany cross head having twobar guides, and capable of ready adjustment totake up the wear and to maintain proper slidable contact with theguides.

A further object of the invention is to' provide a cross head, equippedwith gibs of this character adapted to be securely fasf'tened to thecross head and to afford practically the strength of a solid cross head,

and capable of ready removal for tinning, rebabbitting, or other purposewithout disconnecting either the main rod or the piston fromthe crosshead.

With these and other objects in invention consists in the constructionand novel combination of parts hereinafter fully described, illustratedin the accompanying drawings, and pointed out in the claims heretoappended; it being understood that various changes in the form,proportion,

size and minor details of construction, within the scope of the claims,may be resorted to without departing from the s irit or sacrific in anyof the advantages 0 the invention.

Tn the drawings :F1g'ure 1 is a side elevation of a cross head,constructed in accordance withthis invention. Fi 2 is a longitudinalsectional view of the Fig. 3 is transverse sectional view on the line 33of Fig. 1. Fig. 4 is a similar view on the line 44 of Fig. 1. I Fig v5is a transverse sectional view on. the line 5 5 of Fig. 1. Fig. '6 is adetail perspective View of one of the gibs.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

In the accompanying drawings in which is illustrated the preferredembodiment of the invention, -1 designates a locomotive cross head,connected to the piston rod 2 and the connecting rod 3 in the usualmanner, and

Specification of Letters Patent.

Application filed June 17,

D. JOYNER, a

View, the

same

, ratentease aa1912. 1911. Serial 1E0. esassa.

projecting walls 1 between which are arranged the upper and lower guides4 of a two-bar guide. The cross head is equipped gibs, each consistingof a plate or body portion 6, provided at its inner face with centraland side longitudinal ribs 7 and 8, and having longitudinal caps 9;located at the outer bearing face and constituting the sides 'of thegibs. The longitudinal ribs are tapered to form a wedge-shaped bodyportion, and they are spaced apart and arranged, as shown, to secure alight, strong gib of great strength and durability, but the body portionmay be made solid. if desired. The tapered longitudinal ribs 7 and 8 fitagainst the inclined faces 10 of the cross head, and the side ribs 8 arerounded at the outer edge 11 to fit the-curved surfaces 12 of thecross-head. t I

The longitudinal sides or side caps 9 are spaced apart to form alongitudinal groove or way-13 to fit the upper and lower guides 51, andthe faces of the groove or way 13 are designed to be lined with Babbittmetal, or other suitable anti-friction metal in the usual manner. Thelongitudinal caps 9 are composed of inner and outer parallel verticalflanges 14 and 15, and a connecting flange or portion 16. The'innerflange 14 is imperforate and fits against the inner \outer connectingflange or portion 16 fits against the outer edge of the wall 1, and theouter fiange'15,is arranged-on the outer face of the said wall'l and isprovided with inclined slots 17, adapted to receive clamps ing bolts orscrews 18, which engage threaded perforations 19 in the side walls 1 ofthe cross head.- By this construction, the gibs are firmly and securelyclamped to the cross head without piercing the inner walls 14, whichcarry the Babbitt metal, or other erably interposed between the heads ofthe clamping bolts or screws and the -outer flanges 17. The inclinationof the slots 17 permit a longitudinal adjustment of the gibs withoutrequiring any adjustment or change of position of the clamping screws. Aseries ofclamping screws or bolts is proadditional clamps may also beemployed, for further securing the gibs to the cross head: These clampsconsist ,of approximately L- at the top and bottom with longitudinalprovided at its top and bottom with spaced I i face of the wall 1 of thecross head. The

anti-friction lining. Washers 20 are prefvided for each of the sideflanges 17, but

shaped straps 21, arranged in pairs and Y cated at: opposite sides ofthe cross head K terminals with perforationsv through Which thethreadedinner ends of the straps pass. The straps are provided at theirouter ends with inwardly extendingengaging portions 26, and they areangularly bent at the longi-' tudinal edges of the flanges .15 to formshoulders 27, and to arrange the inner por-' tions of the strapscontiguous to the side faces of the cross head. The transverseconnecting or clip'plates 23 bear against the cross head at the oppositeends of the opening 25, and when the nuts 24 are tightened,

the engaging outer portions'of the straps are drawn tightly lIlengagement with the longitudinal caps of the gibs. W'hen theclamp- 'ingbolts and the clamps are employed, there is no liability of the gibsbecoming accident-ally disconnected from the cross head. The fasteningmeans for securing the gibs to the cross head may be readily loosened topermit an adjustment of the gibs, and

also to enable the same tobe readily removedfrom the cross head fortinning, rebabbit-ting, or any other purpose, and theremovalof the gibsmay be effected without disconnecting either the piston or theconnecting rod from the cross head.

The longitudinal adjustment of the gibs is preferably effected by meansof adjusting screws 28, consisting of commonbolts, provided adjacent totheir heads with smooth portions 29, which are arranged in perforations30 of vertical lugs 31 of the cross head. The gibs are also providedwith vertical lugs 32, having elongated openings 33 for the reception ofthe adjusting screws, which are equipped with nuts 34 and 35. Theelongated openings 33 of the lugs'32 provide suflicient space for theadjusting screws to prevent the latter from interfering with theadjustment of the gibs. The lugs 31 are arranged at the back end of thecross head,

and the lugs 32 of the gibs are located atthe back end thereof, and areformed integral with the side ribs 11, as clearly illustrated in Fig. 6of the drawings. In the embodiment of the invention shown in thedrawings, the gibs are tapered forwardly, but they maybe taperedrearwardly, and the lugs and the ad usting screws may be located at anyother desired point, where there is sufficient space or clearance. Theadjusting screws are simply provided to secure an accurate adjustment ofthe gibs. After the gibs have been adjusted and secured, there is nostrain on the'adjusting screws, which are not employedas a securingmeans for --Having thus fully described my invention, what I claim asnew and desire to secure by Letters Patent, is

1. The combination with a cross head, having at each side top and bottomprojects ing side walls, of tapered longitudinal gibs adjust-ablyarranged at the top and bottom of the cross head and fitting against thesame between the side walls thereof and provided at opposite sides withlongitudinal caps fitted on the outer longitudinal edges of theprojecting side walls of the cross head, and means for securing the saidcaps to the cross head.

2. The combination with a cross head having at each side top and bottomprojecting side walls, of tapered gibs arranged at the top and bottom ofthe cross head and fitting against the same between the side wallsthereof and provided at opposite sides with longitudinal caps fitted onthe walls of the cross head and composed of inner and outer walls andconnecting portions, the inner walls being imperforate, and fasteningmeans piercing the outer walls of the caps and securing the gibs to thecross headk 3.- The combination with a cross head. having at each sidetop and bottom project ing-side walls, of tapered gibs arranged'at thetop and bottom of the cross head and fittingagainst the same between theside walls thereof and provided at opposite sides with longitudinal capsfitted on the walls of the cross head and composed of inner and outerwalls and connecting portions, the inner walls being imperforate, andthe outer walls being provided with inclined slots, and clamping screwsoperating in the slots and securing the gibs to the cro'ss'head.

' 4. The combination with a cross head having projecting side walls, oftapered longitudinal gibs adjustably arranged atthe top and bottom ofthe cross head and provided at opposite sides with longitudinal capsfitted on the outer longitudinal edges of the projecting side walls ofthe cross head, and clamps for securing the gibs in the cross head, saidclamps comprising approximately L-shaped straps engaging the caps of thegibs and having inner threaded ends, a transverse plate extending acrossthe cross head and having perforations receiving the threaded ends ofthe straps, and nuts arranged on the threaded ends of the straps andengaging the transverse plate. 1 O

5. The combination with a cross head having at each side spaced top andbottom projecting side walls and provided with lugs havingsmootho-penings, tapered longitudinal gibs adjustably arranged at thetop and bottom of the cross head and fitting against the same betweenthe side walls thereof and provided at opposite sides with longitudinalcaps fitted on the outer longitudinal edges of theprojecting side wallsof the cross .head, said gibs being also provided with projecting lugs'arrang ed opposite the lugs of the cross head and having smoothopenings, adjusting screws extending through the openings of the lugs,and nuts arranged on the adjusting screws and em gaging the lugs.

6. The combination with a; cross head provided at the top andbottom'with spaced pro ecting side walls, of longitudinal gibsconsisting of plates provided with spaced longitudinally disposedtapered ribs fitting against the cross head between the side wallsthereof, and side caps projecting in the opposite direction from the'ribs and fitted on the cross head at opposite sides thereof, and

means for securing the ,caps to, the cross head.

7. The combination with a 1 cross head having at each side spaced .top'and bottom projecting side walls and provided with lugs having smoothopenings, tapered longitudinal gibs adjustably arranged at the top anding bottom lugs,

'tegral projecting lugs bottom of the cross head and consisting of aplate or body portion having spaced longitudinal ribs fitting againstthe cross head between the side walls thereof and provided with integralprojecting lugs located oppoq site the lugs of the cross head, said gibsbealso provided with longitudinal caps fitted on the outer longitudinaledges of the projecting side walls of the cross head, and adjustingscrews connecting the lugs of the gibswith the lugs of the cross head.

8. The combination with a cross head provided at the top and bottom withspaced projecting side walls and having top and longitudinal gibs adjustably arranged at the top and bottom of the cross head and consistingof a plate or body having spaced longitudinally disposed tapered vribsfitting against the cross head between the side walls thereof andprovided with inlugs located opposite the of the cross head, said gibsbeing also provided with integral side caps approximately U-shaped .incross section and extending in the opposite direction from the ribs andarranged on the projecting side walls of the. cross head and fittinagainst the same at the inner and outer aces and wngitudinal edges ofthe same. Inftestimony, that I claim the foregoing as my own, I haveture in thepresence of two wltnesses. j j MILES D. JOYNER.

Witnesses:

JOHN H. SIGGERS, EDITH L. BROWN.

hereto afiixed my signa-

